package com.service;

import java.util.List;

import com.entity.Students;

public interface StudentsService {

	int deleteByPrimaryKey(Integer xh);

	int insert(Students record);

	int insertSelective(Students record);

	Students selectByPrimaryKey(Integer xh);

	int updateByPrimaryKeySelective(Students record);

	int updateByPrimaryKey(Students record);

	// 查询所有学生及对应的班级名称
	List<Students> selectStudentsGname();

	// 查询所有学生及对应的班级信息（实体）
	List<Students> selectStudentsGrade();
}
